deleted content with zeros without increasing the amount of disk I/O.
FossilOrigin-Name: f1682f0faf1a93ded066464b1ddd5f987e21ee0f6bb5e828ed31c3ad903cf2c3
storing the cell index for the leaf page in the BtCursor object in its own
field (BtCursor.ix), rather than as an entry in the BtCursor.aiIdx array.
FossilOrigin-Name: 2452f0617d1085689264b5f66681788cfe9e3b1a7b318307c93942b702a443df
Remove the SQLITE_RUNTIME_BYTEORDER compile-time option. Use
-DSQLITE_BYTEORDER=0 instead. Fix a bug in R-Tree that occurs when compiling
on a known little-endian machine without the use of intrinsic byteswapping
functions.
FossilOrigin-Name: 798fb9d70d2e5f95e64237b04d6692360133381a
of the right-most subtree is correct. Size reduction and performance increase,
with no change in output.
FossilOrigin-Name: 550705fcb64e7ad637686e47cabe2621d65851bf
Add the get2byteAligned() macro and use it for access to the cell offsets
on btree pages for about a 1% performance gain.
FossilOrigin-Name: 79ff36b7170c9e7e7a9935c8b9d1665867771087
Add the BTCF_Multiple flag. Only invoke saveAllCursors() when using a cursor
that has BTCF_Multiple set.
FossilOrigin-Name: 429ccef2b36fc46e92914eb54afd5f800b1a40ff
Incrblob cursor. Use this knowledge to improve performance in the common
case where it does not.
FossilOrigin-Name: 476b11563c08c6d9c0abd69e4d865c4edcdd45f5
implementations depending on the page type. This results is a small performance
improvement and size reduction.
FossilOrigin-Name: 02f7e9d7d7b93d0b6bbd6cc0d0359b3b741b9931
byte requests in calls to sqlite3BtreeSetPageSize()) and then change the
reserve byte count to the optimal when doing a VACUUM or when using the
backup API.
FossilOrigin-Name: 28c2b726285ea88b334acfd6390a057d2d244838
any other connection commits, including shared-cache connections, but does not
change if the local connection commits.
FossilOrigin-Name: 7a97826f33460f3b4f3890c9cf97116c3355eeda
message context messages until it actually needs to generate an error message.
This avoids much formatting, and hence greatly improves the performance of
"PRAGMA integrity_check" in the common case when there are no errors. It also
makes the code a little smaller.
FossilOrigin-Name: 83913515830aa850f9e38406f9422d7e88dcab66
bit-vector. This allows setting or clearing more than one boolean at a
time and makes the overflow-pgno-cache branch faster than trunk on
speedtest1.
FossilOrigin-Name: 968fec44d7fde3adbd3e9603e4282351f0d4bda1
table and thereby speed up OP_NewRowid. That cache was ineffective.
Removing it results in a performance increase of 0.4%, less memory usage,
and a slightly smaller library size.
FossilOrigin-Name: 56bc5ce8958c8e6250531b4052b905d7ac993db3
related opcodes and in the sqlite3BtreeNext() and sqlite3BtreePrevious()
routines. This is a cherrypick of [6f99b54aedeb], [d2efea1682a7], and
[d78c5d89de4b].
FossilOrigin-Name: 7f72fc4f47445a2c01910b268335873de9f75059
boolean vector. Also make performance improvement simplifications to
sqlite3BtreeMovetoUnpacked().
FossilOrigin-Name: 119493318e0ad4c2858fe1484b0d71669bd81531
the same result. Add a generation counter to btree mutexes in order to assert
that mutexes are never temporarily dropped over a range of instructions in order
to do deadlock avoidance in some subroutine. Lock all btrees in any Vdbe
program that uses OP_ParseSchema.
FossilOrigin-Name: d81708f7d1eee399bfe76f6b8dac950a85dc2582
